Have you tried this Earthlearningidea? If you found a sandstone rock like the one shown in the photo, would you know how the shapes had been formed? Find out by trying this activity - 'Sand ripple marks in a washbowl'. These ripple marks are asymmetrical; how do symmetrical ripple marks form? These are just two of the many types of sedimentary structures that can form in sand.
Monday, 15 June 2009
Make your own asymmetrical ripple marks in sand
Have you tried this Earthlearningidea? If you found a sandstone rock like the one shown in the photo, would you know how the shapes had been formed? Find out by trying this activity - 'Sand ripple marks in a washbowl'. These ripple marks are asymmetrical; how do symmetrical ripple marks form? These are just two of the many types of sedimentary structures that can form in sand.
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